What happens if you convert your DNA into RNA (after extraction) and put it into a genetically modified retro virus and inject it into yourself or other people?And if you have some broken genes sequences and you decide to extract your DNA and fix that problem (if it's possible to fix) and use the method with the retro virus above?

Sorry for all mistakes i did, isn't my nativ language nor am I a professional Biology scientist. I'm starting to learn in a school with focus on Biotechnology and beeing curious about this .